Trait ReadLayered 

pub trait ReadLayered: Read + Bufferable {
    // Required method
    fn read_with_status(&mut self, buf: &mut [u8]) -> Result<(usize, Status)>;

    // Provided methods
    fn read_vectored_with_status(
        &mut self,
        bufs: &mut [IoSliceMut<'_>],
    ) -> Result<(usize, Status)> { ... }
    fn read_exact_using_status(&mut self, buf: &mut [u8]) -> Result<Status> { ... }
    fn minimum_buffer_size(&self) -> usize { ... }
}

An extension of Read, with read_with_status and read_vectored_with_status which return status information and zero is not special-cased. It also allows streams to specify a minimum_buffer_size.

Required Methods

fn read_with_status(&mut self, buf: &mut [u8]) -> Result<(usize, Status)>

Like Read::read, but also returns a Status.

Provided Methods

fn read_vectored_with_status( &mut self, bufs: &mut [IoSliceMut<'_>], ) -> Result<(usize, Status)>

Like Read::read_vectored, but also returns a Status.

fn read_exact_using_status(&mut self, buf: &mut [u8]) -> Result<Status>

Like Read::read_exact, but uses read_with_status to avoid performing an extra read at the end.

fn minimum_buffer_size(&self) -> usize

Some streams require a buffer of at least a certain size.

Implementations on Foreign Types

impl<R: ReadLayered> ReadLayered for &mut R

fn read_with_status(&mut self, buf: &mut [u8]) -> Result<(usize, Status)>

fn read_vectored_with_status( &mut self, bufs: &mut [IoSliceMut<'_>], ) -> Result<(usize, Status)>

fn minimum_buffer_size(&self) -> usize

impl<R: ReadLayered> ReadLayered for Box<R>

fn read_with_status(&mut self, buf: &mut [u8]) -> Result<(usize, Status)>

fn read_vectored_with_status( &mut self, bufs: &mut [IoSliceMut<'_>], ) -> Result<(usize, Status)>

fn minimum_buffer_size(&self) -> usize

Implementors

impl<'slice> ReadLayered for SliceReader<'slice>

impl<Inner: Read + Write> ReadLayered for LayeredDuplexer<Inner>

impl<Inner: Read> ReadLayered for LayeredReader<Inner>